No model number given. Given that it is 6kg it is more than likely a brush motor. And so…if it is a brush motor the carbon brushes is where you start. This is what you are looking for: https://shop.ukwhitegoods.co.uk/beko-carbon-brushes notice how some pictures show very little black carbon brush that is only because you have to bend a metal tang to release the brush – stops them from snapping in transit thats why.
This little collection are the most common types there are a few others that were used that are not listed here. When / if you go look for them do not soley base things visually but check, as you can, the model fit list to find ya model..